Hacktoberfest 2026: the issues maintainers tagged for October, open and beginner-friendly. Browse Hacktoberfest issues

Make EverythingServer capable of running either stdio or http

Open
#889 3 comments 2 reactions 0 assignees View on GitHub

Nobody has claimed this yet.

Assessment

Difficulty
5/5
Estimated time
Over a week
Newbie friendliness
45/100
Issue type
Feature
Clarity
Mostly clear
Activity status
Active
Tech stack
csharp
Domain
api, backend

Research direction

Start by reviewing the existing EverythingServer project and its Program.cs, then read the linked discussion from #709. Compare the stdio hosted-service subscription flow with the HTTP RunSessionHandler flow. Done means the shared handler and subscription logic are separated into a core project while both transports retain their respective startup code.

Written by the indexing model from the issue text.

Description

area-tests enhancement help wanted P3 ready for work

From this comment on #709 by @halter73:

It might be interesting to demonstrate how you can share code for an HTTP and stdio everything server. We could create EverythingServer.Http, EverythingSerever.Stdio and EverythingServer.Core projects. And the Core project could have an AddEverythingMcpHandlers(this IMcpServerBuilder builder, ConcurrentDictionary<string, ConcurrentDictionary<string, byte>> subscriptions) method. It might even make sense to add something like public class SubscriptionCollection : ConcurrentDictionary<string, ConcurrentDictionary<string, byte>> to the core project.

The only thing that couldn't be shared is Program.cs. The Stdio project would use hosted services to manage subscriptions, and the Http project would do the RunSessionHandler logic.

Dominant language
C#
Stars
4.5k
Forks
814
Avg merge
9d 19h
Merged PRs (30d)
4

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

More from modelcontextprotocol/csharp-sdk

All issues in modelcontextprotocol/csharp-sdk

Similar issues

More C# issues

Get new issues in your inbox

A short digest of beginner-friendly GitHub issues.